request for a new feature

since I browse from work way more often then I should I turn off the sigs and avatars. Is there a way to be able to put a colored box around posts depending on who posted it. I don't want to ignore the posts but it would be nice to know that I think the person posting is an idiot (or even that I should pay attention becasue I actually repect that persons opinion) before I get too worked up with what they wrote. Kinda like players notes for poker sites.

"When we were struggling at the beginning of the year we were wondering what was wrong and trying to find reasons. At the end of the day, all we had to do was look in the mirror and the answers were right there." -- Sergei Brylin 12/2/2007